Snail troubles - SOLVED
Yesterday, I received 6 very healthy nerite snails as well as lots of MTS snails. Upon introduction to my tank 29 gallon tank, many of the nerites began getting sluggishly to work, one never moved however. The MTS all had their feet out, but they did not move either. I also introduced several of the MTS to my 10 gallon tank at home that runs exactly the same parameters as my office tank and I introduced two MTS to my sons 10 gallon that runs on tap water. I noticed the only MTS to move around and be active was one of the snails introduced to my sons 10 gallon. The others were clearly alive, foot out and antenna moving, but they never moved.
Jump to this morning, less than 24 hours later, all nerites are closed up and upside down on the bottom of the 29 gallon, still no movement from the MTS but still visibly alive. I pulled all the snails from my 29 gallon and put them in a small container with Primed tap water. 4 out of 6 nerites are now on the go and the MTS are becoming more active.
As some of you know, I run remineralized RODI in my tanks(excluding my sons). I remineralize both tanks to a GH and KH of 3 using nilocg's reKharb and reGen. I dose EI macros 3x week + Burr's micros daily and inject CO2. The MTS are the only thing in my tank at home, so nothing is harassing them there. My 29 is a peaceful community tank with white clouds, T. espei, harlequin rasbora, panda corys and I keep RCS and C. habrosus in this tank which I would think would be FAR more sensitive to unfavorable conditions than the nerites and MTS.
29 gal office tank is almost 2 years old, so very well established. The 10 gallon is a new setup, but cycling is complete. These tanks both received large water changes on Wednesday this week as well as on Sunday because I received some new fish Thursday - wanted to reset water values basically. Running injected CO2.
I'd also like to mention that here recently - last month or so - I had approximately 3 nerites die within a short period of time with seemingly no cause. I assumed they were just old because they had been in my tank for a long time, they were quite large, and I really didn't think much of it at the time - now I'm thinking.
-Are nerites going to be the first critter to tell me I have too much CO2? I have very active and happy fish, I go just over a 1 degree pH drop. pH sits in the mid 6's on both tanks, the 10 gallon I'd let get lower since it was unstocked - plants like it - but am dialing it back in to 6.3-6.5.
-Could a Mg imbalance cause problems for them? I've been experimenting with adding extra MgSO4 to try to correct a plant deficiency, and I'm curious if the osmotic effects of epsom salt can cause problems for my snails, and whether they'd be the first to show signs of problems...
Other than those two ideas, I'm really at a loss. I am not currently dosing anything else. Any input would be appreciated. I need these snails to live!!
Also, I've never dosed copper in this tank. The only copper that has ever entered the tank was from CSM+B(obsolete now), Burr's micros, and fish food.
Last edited by mgeorges; 03-28-2018 at 02:25 PM.